Connected: An Internet Encyclopedia
Mail

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### Mail

Mail is one of the earliest Internet services, and still one of the most requested. Numerous documents and protocols govern mail operation. Some RFCs detail the format of mail messages themselves - the syntax and organization of header and body items. Others detail a variety of mail transfer protocols used for mail delivery. The Encyclopedia's software section includes a section on Sendmail, the popular UNIX-based mail program.

- Mail Format
  - Header Format
  - Address Format
  - Privacy
  - Body Format
  - Summary of MIME Content-types
- Transport
  - DNS-based mail handling
  - POP-3 Protocol Overview
  - SMTP Protocol Overview

Connected: An Internet Encyclopedia
Mail